中国造纸2024，Vol.43Issue(2) ：65-71.DOI:10.11980/j.issn.0254-508X.2024.02.009

锂渣作为造纸填料的可行性探讨

Feasibility Study of Lithium Slag as Filler in Papermaking

何卓凡 宋顺喜 杜盛静 屈新皓 李瑶 殷志刚 朱宏伟 张美云
中国造纸2024，Vol.43Issue(2) ：65-71.DOI:10.11980/j.issn.0254-508X.2024.02.009
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锂渣作为造纸填料的可行性探讨

Feasibility Study of Lithium Slag as Filler in Papermaking

何卓凡 1宋顺喜 2杜盛静 1屈新皓 1李瑶 1殷志刚 3朱宏伟 4张美云1
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作者信息

  • 1. 陕西科技大学轻工科学与工程学院,轻化工程国家级实验教学示范中心,陕西省造纸技术与特种纸重点实验室,陕西西安,710021
  • 2. 陕西科技大学轻工科学与工程学院,轻化工程国家级实验教学示范中心,陕西省造纸技术与特种纸重点实验室,陕西西安,710021;天齐锂业股份有限公司,锂资源与锂材料四川省重点实验室,四川成都,610000
  • 3. 天齐鑫隆科技(成都)有限公司,四川成都,610213;天齐锂业股份有限公司,锂资源与锂材料四川省重点实验室,四川成都,610000
  • 4. 岳阳林纸股份有限公司,湖南岳阳,414000
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摘要

本研究分析了2种锂渣的理化性能,探究了锂渣含量对纸张性能的影响.结果表明,锂渣微观形貌呈不规则的块状,具有较大内表面积的多孔结构,粒径较大且分布范围较广.1#锂渣与2#锂渣的白度分别为66.4％和76.5％,加填会降低纸张白度.锂渣加填纸的强度性能优于沉淀碳酸钙加填纸.填料含量为18％时,1#锂渣加填纸的抗张指数较沉淀碳酸钙加填纸提高了38％.填料含量为12％时,2#锂渣加填纸的撕裂指数较沉淀碳酸钙加填纸提高了41％.此外,2#锂渣加填纸的防水性能与沉淀碳酸钙加填纸相当,可以满足纸张防水性的要求.因此,锂渣可应用于对白度要求较低的包装纸中.

Abstract

The physical and chemical properties of two types of lithium slag were investigated,and the effect of lithium slag content on paper proper-ties was explored.The results showed that the micro-morphology of lithium slag was irregular gravel-like,with a large internal surface area of the po-rous structure.The particle size of lithium slag was large and widely distributed.The brightness of 1# lithium slag and 2# lithium slag was 66.4％and 76.5％,respectively.The brightness of the paper was reduced after filling the lithium slag.The strength performance of the paper filled with lithium slag was better than the paper filled with PCC.At 18 wt％filler content,the tensile index of the paper filled with 1# lithium slag was 38％higher than that of the paper filled with PCC.At 12 wt％filler content,the tear index of the paper filled with 2# lithium slag was 41％higher than that of the paper filled with PCC.In addition,the water resistance of the paper filled with 2# lithium slag was comparable to that of the paper filled with PCC,which could meet the requirements of water resistance of paper.Therefore,lithium slag could be used in packaging paper with lower whiteness requirements.

关键词

锂渣/造纸填料/抗张指数/撕裂指数

Key words

lithium slag/papermaking filler/tensile index/tearing index

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基金项目

锂资源与锂材料四川省重点实验室开放基金(LRMKF202308)

出版年

2024
中国造纸
中国造纸学会 中国制浆造纸研究院

中国造纸

北大核心
影响因子：0.525
ISSN：0254-508X
参考文献量21
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